Brake hanger



p 1951 w. H. BASELT 2,568,703

BRAKE HANGER Filed Jan. 21, 1949 2 Sheets-Sheet 2 sleeve 34 is mountedover the bushing 32 and preferably connected thereto, the sleeve 34being press-fitted within a complementary opening 36 in the upper end ofa control arm 38 which is disposed at one side of the hanger 2. Anannular bearing member 48 may also be press-fitted onto the sleeve 34 inabutment with the control arm 38. The bearing member may be welded tothe control arm as at 42, 42 and is designed to afford with the controlarm a large bearing against the sleeve 34. The control arm may have ashank portion 44 disposed immediately below the resilient unit 38 andarranged diagonally toward the hanger 2. The lower end of the controlarm may be bifurcated as at 46 to provide spaced legs 48, 48 bentsubstantially parallel to the body portion 4 of the hanger 2 andembracing a portion 58 of the body of the hanger in an area intermediatethe ends of said hanger body. The legs 48 may be welded as at 52 to theportion 58 whereby the hanger and the control arm are formed'as aunitary structure. It will be apparent that the brake hanger assembly asdescribed is easily connected and dismantled with respect to the supportand is simple in design and is adapted to be applied to a standard typeof support or brake hanger bracket. The hanger and its control arm arepivoted on a common axis and are rotatable together on said axis.Rotation of the, hanger and the control arm is resisted by the resilientunit which, during rotation of the hanger and control arm, is stressedin shear. Lateral swinging movements of the hanger, as permitted by theclearance between the bushing 54 in the head 6 of the hanger and the pinI8 which increases with wear, is restrained by the resilient unit bycompression of the bushing 32 between sleeves 24 and 34. It will beunderstood that the control arm is movable 'with the sleeve 34 and thatthe sleeve 34, being connected to the resilient bushing as byvulcanizing, is efiective to stress the bushing in shear andincompression. It will be apparent that the weight of the brake rigging issupported principally by'the hanger on' the pin and that any forcesapplied to the hanger during braking application is transmitted from thehanger to the pin to the support bracket, whereby overcompression of theresilient bushing is prevented. Direct lateral movement of the hanger isalso yieldingly resisted by the bushing 32 in shear. It will be notedthat the outer sleeve'34 is shorter than the inner sleeve 24 and iscentered with respect thereto and that the resilient bushing 32'istapered at its ends as at 56 and 58 toward the sleeve 24 and isradiused as at 68 and 62 adjacent the ends of the outer sleeve 34 inorder to prevent the ends of the outer sleeve from cutting into the.bushing and to accommodate fiow of the material of the bushing duringcompression thereof. It will be understood that the unit 38 may be asingle piece of rubber interposed between the arm 38 and the pin I8 andcompressed between the head 22 and lug I8.

Referring now to Figure 4 illustrating another embodiment of theinvention, the brake hanger I88 comprises a head I82 at its lower endwith a bushed opening I84 adapted for connection to an associated brakepart, such as a brake beam. The upper end of the hanger is bifurcated toprovide a control arm or leg I86, extending from the body portion I88 ofthe hanger intermediate the'ends thereof, and an extension or leg I89 ofthe body portion terminating in a head I I8.

The head I I8 of the hanger is received between spaced lugs or "ears H4and H6 of a support 4 bracket H8 and the control arm extends around theexternal side of lug H4. The extension I89 and arm I86 are thusintercalated with the lugs H4 and H6. The hanger is pivoted to thebracket or support I [8 by a pin I28, said pin having an enlargedannular portion I22 extending through a complementary opening I24 in theupper end of the control arm I86. The enlarged portion I22 provides ashoulder I25 which abuts against the external side of ear I I4. The pinhas a reduced portion I26, which extends through openings in the earsII4 and H6 and through a bushed opening I28 in the head H8 of thehanger. The pin thu affords a pivotal connection between the hangerstructure and the support, the hanger proper and and the control armbeing pivoted on a common axis. The openings I24 in the arm and I28 inthe hanger are shown slightly worn in the drawings whereby the hanger isaccommodated lateral pendulous movement.

It will be appreciated that the pin does not'fit and I32 are provided atopDQsite sides of the up per end of the control arm, said resilientunits being sleeved onto the enlarged'portion I22 of the pin and beingcompressed, respectively, between the ear IM and the arm I86 and betweenthe arm I86 and a head I34 formed on the outer end of the portion I22.It will be observed that the pin is tightly-secured to the supportbracket by means of a nut I36 which is threaded on the reduced portionI28 of the pin, said nutabutting through a washer I38 against the outersid of ear IIG ofthe support bracket. It will be observed thatovercompression of the shear sandwiches or resilient units, each ofwhich comprises a pad of resilient material I48 between spaced washersI42 vulcanized thereto, is prevented by abutment of the shoulder I25with the external side of the ear II4.

In the present embodiment, after some wear has takenplace in the openingI24 in the control arm and in the bushed opening of the head 8 of thehanger, lateral movement or swinging of the hanger is yieldingly.restricted by the resilient units I38 and I32 which; are stressed incompres-' sion. Rotational movement of the hanger and the control arm,whichis an integral part of the hanger, is restricted by the resilientunits which are stressed in shear during rotational or pivotal movementof the hanger. It will be noted that the resilient units as in theprevious embodiment serve to release the brakes and that the arrangement shown in the present embodiment possesses substantially all'thefeatures discussed in connection with the previous embodiment.

Referring now to Figure '5 illustrating another 7 embodiment of theinvention, the hanger 288 is bifurcated at its upper-end to providespaced portions, one of said portions 282 being a continuation of thebody portion 284 of the hanger and terminating at its upper end in ahead 286 received between spaced'lugs or'ears 28-8 and 2I8 of a supportbracket 2II' which may be part of an associated truck frame. The otherportion of the bifurcated upper end of 5 the hanger may be in the formof an integral control arm 2 I2 which may extend from one side of thebody portion of the hanger upwardly-around the external side of lug 288of the brake hanger bracket. The

ate-me.

"fios e dbetwe v side qir QT s means of a nlit 230 and .iii' abutment tf pugh" mat r a t tqns u ine. he bushieg 1; ngfoscillates' sateen a coLjTheirinerlsleeve ma be pr radare ei1iafiens'trm V resisted by theresilient uni't"whiclfis'stressed in .pompression.

It will benotd that in all three embodiments the resilient un it and thecontrol arm are effeptive to restrain iree swinging 0f the hanger and"'tliusthe parts "connectedi'thereto. The means to effect this objectares'impIe; and the range d in an eflicient manner and can ;;he overpqmp essedhv f rce xe ed eim. ally of; t iel a iaer-l The m rementsethe}; ise in its, normal plane are resisted by stres ng the esi i nt unis. Sheen and, .k qy et smi P an are t.e.dlbx g enoted disposed adjacentthe igternal-- side. of oneaof "saidflii" m t.

eans onthe ome alhee 'l 1s awn filmfimheragide Drone ot said lugs and pP On n means. 9' 1 a q q 33am Tinjabutmjent withthe external ideI'o'ther ofi'saidlugs, abutmentmean pin and,resilient meansfonl, saidenla ed s ofr saidmemberland c Q s -ia nne,, 1u

ht an .I-Q W -Q1Y arrangement, 1 a brake hanger 15 25 ,d- T e ti-wv P 11r lez'z'tending'therebetw n l ,tqi i e th oiieh i ned b n f n d er andjs'aild supports'fafiording a'jpivotal cdnnection 'therebetwee'n,abutment v meanisfat one endpf, said bolt, ajn'u't threaded on the other1 id.; 1t.. eidab i@1i i t' nd. nu d sfo'f. a d .sui bort's an dif l f divp 'ed'ldn 1 means and resilientfmearis under t jn d. etwe n" d am:arid support and between a' head'jon said 1. dig- K t "5? In brakearrangement, a support, a hanger a pivot element "securedto SaidlS iPibr't and-"extending thriugnsaid hanger and affording a pivotalconnection therebetween, resilient means connected to said element andsupport, a member connected at one end to said hanger intermediate theends thereof and at the other end to said resilient means, saidresilient means being formed and arranged to be compressed between saidmember and said element upon pendulous lateral movement of said hangerand to be stressed in shear during other movements of said hanger, theconnection between said resilient means and said element and supportsaid legs for cooperation therewith comprising an abutment on saidelement, asleeve connected to said resilient means and surrounding saidabutment, and a portion of said sleeve secured between said abutment andsaid support.

' 6. In a brake assembly, a support, a hanger having spaced legs, anelement connected to .the support and extending through said legs,spaced resilient means compressed between a le 'and said element andbetween said leg and said support for resisting movements of saidhanger,

said element being arranged to draw said resilient means, leg andsupport together, and abutment meanson said element engageable with saidsupport after a predetermined compression of said resilient means toprevent overcompressionthereof. V

7. In a brake arrangement, a support, a

hanger, a control arm spaced from said support and connected to saidhanger intermediate the ends thereof, a pivot element extending throughopenings in said arm, support, and hanger, said hanger having engagementwith said element along rigid surface and-resilient means mounted onsaid element in engagement with said arm and formed and arranged to bestressed in compression upon lateral pendulous movement of said hangerand to be stressed in shear during other movements of the hanger.

8. In a brake arrangement, a hanger having spaced legs, a support, apivot element extending through said legs and said support and securedto the latter, one of said leg engaging said element along rigid bearingareas, and resilient means interposed between the other of saidlegs andsaid element and connected thereto and operative in conjunction withsaid other leg to ,yieldingly resist movements of said hanger on saidelement. 7

9. In a brake arrangement, a support, a

hanger having a bifurcated extremity including ing through said legs andsupport, at least one of said leg engagin said pivot means along rigidareas, and resilient means mounted on said pivot means in engagementwith'the other of to resist movements of said hanger.

11. In a brake arrangement, a support comprising spaced lugs, a hangerhaving a, bifurcated extremity including spaced legs intercalated withsaid lugs, a pivotal securing element extending through said legs andlugs, and resilient means mounted on said element in engagement with oneof said legs and adapted to be Stressed between said leg and element toyieldingly resist movements of said hanger.

12. In a brake arrangement, a support bracket,

a hanger; a pivot element securing said hanger to said support bracket,a resilient unit secured to said support bracket, said unit comprisinginner and outer telescoped sleeves, av resilient element between saidsleeve and secured thereto, ameinber disposed at one side of said hangerand'connected at spaced points to one of said sleeves and to saidhanger, abutment means on saidielementQ and a radially extending flangeon'the other sleeve secured on said element and clamped between saidsupport bracket and said abutment means. 7

13. In a brake mechanism, a hanger'bracket comprisin spacedlugs, ahanger, having spaced portions interc alated with said lugs, a pivotelement extending through said lugs and portions, one of said portionsengaging said element, and flexible means interposed between the otherof said portions and said element.

' 14,.In a brake arrangement, a bracket comprising a pair of spacedgenerally parallel depending lugs, a hanger having its upper endinterposed between said lugs, a bolt and nut assembly extending throughsaid lugs and the upper end of said hanger and'having abutment means atopposite end tightly engaging the external sides of said lugs andsecuring said'assembly thereto, and a control member extending fromintermediate the ends of said hanger upwardly adjacent the external sideof one of said lugs and pivoted on the adjacent abutment means, saidhanger'and member being pivoted on a common axis, said control arm beingoperative 'to resist certain movements of said hangerr 15. In a brakearrangement, a support comprising spaced portions, a hanger extendingbetween said portions, pivot mean extending through the portions andhanger and pivotally interconnecting the same, said pivot meanscomprising a cylindrical part tightly engaging the external side of aportion, and a control member extending from the hanger and pivoted onsaid cylindrical part, said hanger and control memher being pivoted on acommon axis, and said control member being operative to resist certainmovements of the hanger.

WALTER H. BASELT.

REFERENCES CITED The following references are of record in. the file ofthis patent:

UNITED STATES PATENTS Number Name Date 6,988 Kimball et a1 Jan. 1, 1850978,291 Helmus Dec. 13, 1910 1,766,882 Chryst June 24, 1938 1,913,513Rossman et a1 June 13, 1933 1,958,119 Tarr May 8, 1934 2,043,015 ShuttsJune 2, 1936 2,246,894 Oelkers June 24, 1941 2,366,860 Kraft Jan. 9,1945

